Why is the constructor of the QueueLinkedList class empty?| Data Structures

A.     because initialization of data members of the LinkedList class is performed by the constructor of the LinkedList class.
B.     because initialization of data members of the LinkedList class is performed by the destructor of the LinkedList class.
C.     because initialization of data members of the QueueLinkedList class is performed by the constructor of the LinkedList class.
D.     because initialization of data members of the QueueLinkedList class is performed by the destructor of the LinkedList class

Ans: A